Mimeograph attachment



W. M'AORS.

MTMEOGRAPH ATTACHMENT, APPLICATION FILED MAR: 3l, 19.20, lfig@ 915326Paeute; July M9 TQ" 2 SHEETS-SHEET I.

W. L. MAJORS.

MIMEOGRAPH ATTACHMENT. 4APPLICATION FILED MAR. 3l. 1920.

PaIenIeII July II, w22.

2 SHEETS-SHEET 2.

WALTER n. Marrons, or Louis, ivirssounr.

'Specification of Letters Patent.

iviiunoeneri-r ATTACHMENT.

Patented July 11, 1222.

Application led March 31, 1920. Serial No. 370,193.

To zZ-Z who/mit may concern Be it knoivn that I, VALTERIL. Mnaons, acitizen of the United States, residing in the city ofSt. Louis, in the.State of Missouri, have invented certain. neiv and useful lmprovementsin Mimeograph Attachments, of which the following is a specification.

.This invention relates to mimeogrjaphs or `thelike and can be applied,also, to cylinder printing presses.V lts Objectis tosimplify, expedite,and Cheapen the printing .of any given matter in ,tivo or more colors.By this apparatus such printing can always be pro- .Clucedin two or morecolors by one operation unless one of the said colors is superimposedupon another.

' 9 "and makes its exit into the paper trough f ridge.

properly.

In the accompanying drawings forming part or this specification, inwhich like numbers of reference denote like parts Wherever they occur, l1

Figure 1 is a side elevation;

Figure 2 is a top planvieiv;

Figure 3 is a fragmentary view showing one form of ridge;

Figure 4 is an elevation. showing means for longitudinal adjustment ofthe printing rollfor cylinder, s o as to present either a ridge orgroovefor regulatory purposes, such as hereinbefore described; Y

Figure 5 illustrates the means of attaching "one forni of ridges to theprinting cylinder Aor roll;

VFigure 6 illustratesnon-contact with a ridge; and c n .Figure 7illustrates contact with such The mimeograph shown in Figure 1 mayYbe'of the standard or conventional type in which the legsv 1 rest uponthe floor; A drawer 2 between them may contain supplies. provided withthe hinged leaf 4. The base 5 Vrests upon'table `3 and supports the ma-.4. chine propel- The handle 6 turns on the Vpoivergif the machine beapower-drivenV machine.

@therwise a crank-handle (not shown lin the drawings) is used. rlhe dial7 with pointer 8 Vcan be used if desired to indicate the -jnumberprinted and Y to be printed, and to ring a bell (notshorvn) when the jobis finished.

The paperis introduced at the p aperfeed Presser 11 causes the. paperThe machine rests upon the table 3 The use of regulators 12 and 12 isWell understood by mimeograph operators. inker 13, which is ofconventional construction, is adapted to produce internal inking of themimeograph roll or printing cylinder from 'the inside.

So far, the description relates only to the Well-known mimeographmachine, to which additions are made by the present invention, which canbeused without interference in any Way ivith the mimeographs now on themarket and, yet, with theV added advantages pointed out above. A A

A bracket or arm 14 is pivoted at 15 to the frame 16 of the machine andsupports roll 17 in a revoluble manner. Bracket or arm 1,8 is pivoted at-19 to the frame 16 of the machine, and supports in a revoluble mannerink roll 20, which is adjacent to inker.l 21 supportedA by bracket 22from arm 18. I

Springs 23 and 24 tend to draw rolls 2O and 17 respectively, toward thecenter roll 25. rlhe said springs 23 and 24 are fastened by eyelets atone end thereof to stud 2G and by hooks 27 to collars 2S at the top ofbracketsor arms 14 and 18.

y lt is to' be understood that any number of colors desired can beprinted by this device,

*but in the drawings itis illustrated as printing only tivo colors,thenormal or ordinary color applied by inker 13 and a different color byroll 20, which color is received by roll 2O from the inking roll 21, onWhich the same is preferably first spread and from which it is taken upby roll 20. ln use the roller 17 may be provided With an inking rollersimilar to the inking roller 21 in which case a predetermined portion ofthe printing drum would be supplied with ink by the roller 17. ln thisarrangement it will be assumed that the area 29 prints black and thearea 30 prints a varying color, such, for instance,A as red. `Anintervening area (not'shoivn in the drawings) could likeivise print'some other color, or the area V29 may liebetween the area 30 and someother area behind area 29. and not shown in the drawings. rlhearrangements described and mentioned are only illustrations and can bevaried'at Will.`

The mimeograph vsheet 29 is supplied with ink bythe internal inker 13.The printing surface 30 which is provided with any suitable printingmeans such as type is not supplied withY black ink.

plied with ink by the internal inker 13, but isV supplied with ink byreason of its contact with thel inlring roller 20. Therefore, the roller20 is necessarily spaced from contact with the surface 29 which, for thepurpose of illustration, may be said to be sup- Also, the printingsurface 30 is necessarily engaged by the roller 20 which, for thepurpose of illustration, may be said to be provided with red ink. It isthus apparent that the surface 29 is supplied with black ink and thatthe surface 30 is provided with red ink so that when the drum 25 isrotated the different colored surfaces 29 and 30 will be engaged withthe paper as the paper passes beneath the drum andinto the collector 10.

Y The means employed forV spacing the roller 20 from contact with themimeograph sheet 29 includes one or more arcuate ridges orprojections 31which'may be arranged at one or both ends of the drum for contact witha: flange or flanges 33 formed at the ends of the inking roller 20. Asillustrated in Figure 2 one ridge 31 is located at one end of theprinting surface 29 so that when the drum is rotated the ridge 31 willcontact with the flange 33 andthereby move the roller 2O outwardly. Byreason of this construction the roller 20 which supplies red .ink willbe spaced from contact at all times with the black mimeograph sheeti29.

The roller 2O is also provided with annular grooves 32 through whichanother set of .blocks forming Athe ridges 31 maypass.

When one set of ridges is so positioned that it passes through theannular groove 32 during therotation of the drum the roller 2O will notbe moved outwardly. Figure 2 illustrates one ridge 31 at one endof thered printing surface 30 and consequently when the printing surface 30 ispresented to the roller 2O the two will have contact whereby to inlrthesurface 30. That is to say, the ridge 31 at the end of the surface 307does not space the' roller 2() from Contact with the surface 30.However, the ridge 31 at the endy of the surface 30 is employed 'forspacing the surface 30 from contact with roller producing a. third colorin cases 'where a third color is employed.

Grooves 32 and flangesv33 are preferably continuous.. but the ridges 31are preferably notk circumferentially complete around the cylinder orroll 25 but canrbe made longerV :or shorter as may be requiredor desiredand may be only one on each end of roll 25 (arranged as shown in Figure2 to alternate elevation and depression) or there maybe a plurality ateach end in case it is desired Vto printv in more than two or threecolors.l

TheV machine, as illustrated in Figure '2 is adapted kto print in threecolors, with the ordinary mimeograph stencil producing one color androlls 17 and 2O printing each ing openings 35 therethrough for thepassage of tongue 3 6, which is provided with hook 37 for attachmenttothe frame 33 of cylinder or roll 25. Springf39 holds the hook 37 tautagainst frame 38.

Spring 39 is provided with a hook or the like 43 that fastens to an edgecorresponding to edge 38 that is grasped by hook 37. Thus Y the blocks34 can be slid or moved anywhere upon tongue 36.l u u v As means fortemporarily locking the rolls 17 and 20 on their respective 'adjust- Yed positions, the bearings or spindles of these several rolls may `beand preferably are may be optionally fitted or engaged.

rtandard 44 formed integral-with the bracket 14 affords a bearing forshaft 45 that supports either roll 17 or 20, whichl shaft containsgrooves 40 and .41. Pin 42 is fastened iny recess 46 in standard 44 andholds the rollei 17 or-20 in the groove 4() or 41 to secure the desiredon its respective shaft. Y

Having thus described this invention, I hereby reserve 'the benefit ofall changes in form, arrangement, order, or use of parts, as

position of the roller -it'is evident that many minor changes ymay`formed with annular grooyes 40and 41 into which a spring pressed pin 42be made therein without departing from fthe spirit 4of this invention orthe scope of the following claims. I claim:

1. In an apparatus adapted to print ink ydifferent colors, thecombination of a printing member having ridgesVV or projections, andadjoining rolls having depressions and Vparts projecting relative tothesaid depressions, the said ridges being composed of individualelements or blocks adapted to vary thefsame as'to length, and a tongueadapted to hold. the said-elements.

ies

iio

2. In an 4apparatus adaptedl to print Y.

in different colors, the combination of a printing member having ridgesor projec-V tions, and adj oining rolls having depressions and partsprojecting `relative to the said depressions, the said ridges beingcomposed of individual elements or blocks adapted to vary the same as tolength, and a tongue adapted to hold the said elements, the-said tonguebeing-provided with a hook.

3. In an Aapparatus adapted to print inV different colors,thecombination of a printing member having ridges or projections, andadjoining rolls having depressions and parts'projecting relative to thesaid depressions, the said ridges being composed of inA dividualelements or blocks adapted to vary i the same as to-length,and a tongueadapted to hold the said elements, the said tongue Y being provided uith Va hook and a spring.

4f. In an apparatus adapted to print in di'lferent colors, thecombination of a printing member having ridges or projections, andadjoining rolls having depressions and parts projecting relative to thesaid depressions, the said ridges being composed of individual elementsorblochs adapted to vary the same as to length, and a tongue adapted tohold the said elements, the said tongue being provided with a hook and aspring, and the said spring carrying an additional hook.

5. In an apparatus adapted to print in diiferent colors, the combinationof a printing member having ridges or projections, and adjoining rollshaving depressions and parts projecting relative to the saiddepressions, the said ridges being composed of individual elements orblocks adapted to vary the same as to length, and a tongue adapted tohold the said elements, the said tongue being provided with a hook and aspring, the said spring carrying an additional hook, and the said hooksbeing for attachment to the printing member.

6. In a device of the character described, the combination of a printingmember, a roll or rolls in proximity thereto having depressions therein,andprojections from the said printing member adapted to be moved into aplurality of positions for alternate engagement with said depressions,the said projections being borne by a tongue or strap secured to thesaid printing member, and the said tongue being fastened to the saidprinting member by hooks or the like, and the said hooks being held tautrelative to each other by a spring and the undepressed or normalperiphery of the said roll or rolls.

7. In a printing apparatus of the character described, the combinationof a printing member having projections and a roll or rolls in proximitythereto having depressions and parts higher than the said depressionswhereby to move said roll or rolls, alternately, t0 different positionsWith relation to such printing member upon their engagement with suchprojections, and the shaft or shafts of the said roll or rolls havingnotches therein, and a pin adapted to enter either of the said notchesadapted to hold the said roll from sliding movement transversely of themachine but adapted when withdrawn from such notch to permit suchmovement.

In testimony whereof I hereunto aiiix my signature.

WALTER L. MAJORS.

